anonymous
  • anonymous
Can you help me to solve the following integer?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
|dw:1328759896228:dw|
bahrom7893
  • bahrom7893
Let u = x^2
bahrom7893
  • bahrom7893
hold on ill draw, this is inverse sin

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anonymous
  • anonymous
ok thanks
bahrom7893
  • bahrom7893
|dw:1328760042213:dw| nevermind it was double u-sub
anonymous
  • anonymous
ok
bahrom7893
  • bahrom7893
hmm no.. hold on, i'm sure it's one of these subs..
anonymous
  • anonymous
Dont worry, I have been trying to solve it for more that an hour. So I will wait
anonymous
  • anonymous
It doesn't look like a double u-sub...? Or were you thinking that it was a trig sub?
bahrom7893
  • bahrom7893
yea i think so..
anonymous
  • anonymous
that works though, your double u-sub is fine
bahrom7893
  • bahrom7893
Wolf to the rescue!
1 Attachment
anonymous
  • anonymous
Ew, a double u-sub and a tan integral. NO, DON'T GIVE ME A MEDAL. I didn't do anything lol.
anonymous
  • anonymous
You deserve that anyway
anonymous
  • anonymous
i don't think you have to do a tan integral do you? what if you u just went w = u^2-1 dw =2udu dw/2u=du
anonymous
  • anonymous
|dw:1328760546289:dw|
anonymous
  • anonymous
solve that and then do all the subbing
anonymous
  • anonymous
dont get it
anonymous
  • anonymous
sorry, can you post it?
anonymous
  • anonymous
does that make sense to anyone else, cause i could be way out
anonymous
  • anonymous
It doesn't cancel the u outside the sqrt in the denominator, unless I'm mistaken. Which is why a tan is necessary.
anonymous
  • anonymous
yeah, wishful thinking i guess. looks wrong now that i think about it. Sorry you gotsa suffer through the trig integral
anonymous
  • anonymous
Its ok

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